How recreate a hash digest of a multihash in IPFS

Question

Assuming I\'m adding data to IPFS like this:

$ echo Hello World | ipfs add

This will give me QmWATWQ7fVPP2EFGu71UkfnqhYXDYH566qy47CnJ

Answer 1

I'm not sure what that encoding is but you can unmarshal the dag data field like this in js-ipfs:

const IPFS = require('ipfs')
const Unixfs = require('ipfs-unixfs')

const ipfs = new IPFS

ipfs.dag.get('QmWATWQ7fVPP2EFGu71UkfnqhYXDYH566qy47CnJDgvs8u', (err, d) => {
  console.log(Unixfs.unmarshal(d.value.data).data.toString()))
  // prints Hello World
})